<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8" />
  <title>Hello World</title>
  <script src="https://unpkg.com/react@16/umd/react.development.js"></script>
  <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
  <script src="https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script>
</head>

<body>
  <div id="root"></div>
  <script type="text/babel">

    function formatDate(date){
      return date.toLocaleDateString();
    }

    function Avatar(props){
      return <img className="Avatar" src={props.user.avatarUrl} 
        alt={props.user.name}/>;
    }

    function UserInfo(props){
      return  <div className="UserInfo">
                <Avatar user={props.user} />
                <div className="UserInfo-name">
                  {props.user.name}
                </div>
              </div>;
    }
   
    function Comment(props){
      return (
        <div className="Comment">
          <UserInfo user={props.author}/>
          <div className="Comment-text">
            {props.text}
          </div>
          <div class="Comment-data">
            {formatDate(props.date)}
          </div>
        </div>
      );
    }

    const comment = {
      date:new Date(),
      text:'I hope you enjoy learning React!',
      author:{
        name:'Hello Kitty',
        avatarUrl:'http://placekitten.com/g/64/64'
      }
    };

    ReactDOM.render(<Comment date={comment.date} text={comment.text} author={comment.author}/>,
      document.getElementById('root'));

  </script>
  <!--
      Note: this page is a great way to try React but it's not suitable for production.
      It slowly compiles JSX with Babel in the browser and uses a large development build of React.

      To set up a production-ready React build environment, follow these instructions:
      * https://reactjs.org/docs/add-react-to-a-new-app.html
      * https://reactjs.org/docs/add-react-to-an-existing-app.html

      You can also use React without JSX, in which case you can remove Babel:
      * https://reactjs.org/docs/react-without-jsx.html
      * https://reactjs.org/docs/cdn-links.html
    -->
</body>

</html>